Deye Inverter Entities Sensor Modbus Register 78: Name inverter name grid energy imported total

Technical Definition

The register name inverter name grid energy imported total at address 78 is used to monitor name inverter name grid energy imported total on the Deye Inverter Entities Sensor.

• Protocol: Modbus RTU
• Data Type: U WORD
• Unit: kWh
• Access: Read Only

How to Read (Python pymodbus)

Use this code snippet to read this specific value via RS485:

from pymodbus.client.sync import ModbusSerialClient

client = ModbusSerialClient(method='rtu', port='/dev/ttyUSB0', baudrate=9600)
client.connect()

# Read name inverter_name grid energy imported total (Address: 78)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=78, count=2, unit=1)

if not result.isError():
    print(f"Raw Value: {result.registers}")
else:
    print("Error reading register")

client.close()

Integration (Home Assistant)

Paste this into your configuration.yaml:

- platform: modbus_controller
  name: "name inverter_name grid energy imported total"
  address: 78
  value_type: U_WORD
  unit_of_measurement: "kWh"

Connection Diagram

Here is the standard RS485 wiring for this configuration:

graph TD
    PLC[Host Controller / Home Assistant]
    Device[Deye Inverter Entities Sensor]

    PLC -- "A+ (D+)" --> Device
    PLC -- "B- (D-)" --> Device
    PLC -- GND --> Device

💡 Engineer's Insight

Analysis: Total accumulated energy imported from the grid (kWh). Cumulative power drawn from the utility over time.

Troubleshooting: Zero value could indicate a recent installation, a fault in the import measurement, or no grid reliance. Verify inverter and grid connection.